1109450943 has 12 divisors (see below), whose sum is σ = 1604868408. Its totient is φ = 738559440.

The previous prime is 1109450929. The next prime is 1109450987. The reversal of 1109450943 is 3490549011.

It is a happy number.

1109450943 is a `hidden beast` number, since 1 + 109 + 4 + 509 + 43 = 666.

It is not a de Polignac number, because 1109450943 - 2⁸ = 1109450687 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1109450898 and 1109450907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109450443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82980 + ... + 95417.

It is an arithmetic number, because the mean of its divisors is an integer number (133739034).

Almost surely, 2^1109450943 is an apocalyptic number.

1109450943 is a deficient number, since it is larger than the sum of its proper divisors (495417465).

1109450943 is a wasteful number, since it uses less digits than its factorization.

1109450943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179094 (or 179091 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 1109450943 is about 33308.4215026771. The cubic root of 1109450943 is about 1035.2280586851.

Adding to 1109450943 its reverse (3490549011), we get a palindrome (4599999954).

The spelling of 1109450943 in words is "one billion, one hundred nine million, four hundred fifty thousand, nine hundred forty-three".